source: trunk/packages/xen-3.1/xen-3.1/tools/libaio/harness/cases/12.t @ 34

/* 12.t
- ioctx access across fork() (12.t)
 */
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <signal.h>

#include "aio_setup.h"

void test_child(void)
{
        int res;
        res = attempt_io_submit(io_ctx, 0, NULL, -EINVAL);
        fflush(stdout);
        _exit(res);
}

int test_main(void)
{
        int res, status;
        pid_t pid;

        if (attempt_io_submit(io_ctx, 0, NULL, 0))
                return 1;

        sigblock(sigmask(SIGCHLD) | siggetmask());
        fflush(NULL);
        pid = fork();                           assert(pid != -1);

        if (pid == 0)
                test_child();

        res = waitpid(pid, &status, 0);

        if (WIFEXITED(status)) {
                int failed = (WEXITSTATUS(status) != 0);
                printf("child exited with status %d%s\n", WEXITSTATUS(status),
                        failed ? " -- FAILED" : "");
                return failed;
        }

        /* anything else: failed */
        if (WIFSIGNALED(status))
                printf("child killed by signal %d -- FAILED.\n",
                        WTERMSIG(status));

        return 1;
}